Just a quick note to let you know that National Geographic, long the favourite of photographers and praised for its imagery, is currently offering their complete back-copy on 7 DVDs for jsut $25.
From their site:
Browse 123 years of National Geographic magazine—more than 1,400 issues, 8,000 articles, 200,000 photographs, and hundreds of maps exactly as they appeared in print. Our definitive collection of every issue of National Geographic magazine through 2011 is digitally reproduced in high resolution. Use the visual interface to explore a topic, find photographs, browse the globe, or wander on your own expedition.
I’m not sure how long the offer will last or if there are any other restrictions (i.e. US only) so if you’re interested, follow the link below to check it out!